823553884737041 has 4 divisors (see below), whose sum is σ = 823577677967412. Its totient is φ = 823530091506672.

The previous prime is 823553884737007. The next prime is 823553884737061. The reversal of 823553884737041 is 140737488355328.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 607504925188225 + 216048959548816 = 24647615^2 + 14698604^2 .

It is a cyclic number.

It is not a de Polignac number, because 823553884737041 - 2¹⁸ = 823553884474897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (823553884737061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11896563266 + ... + 11896632491.

It is an arithmetic number, because the mean of its divisors is an integer number (205894419491853).

Almost surely, 2^{823553884737041} is an apocalyptic number.

It is an amenable number.

823553884737041 is a deficient number, since it is larger than the sum of its proper divisors (23793230371).

823553884737041 is a wasteful number, since it uses less digits than its factorization.

823553884737041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23793230370.

The product of its (nonzero) digits is 541900800, while the sum is 68.

The spelling of 823553884737041 in words is "eight hundred twenty-three trillion, five hundred fifty-three billion, eight hundred eighty-four million, seven hundred thirty-seven thousand, forty-one".